Scientists use evidence of catastrophic events to learn more about Earth's history. These events, such as volcanic activity, earthquakes, climatic change, and asteroid collision, may have impacted Earth's surface and lifeforms. Think about the way these events could have changed Earth over
time.

Plants are used for so many things. in your house alone, you can probably look around you and see where plants have been used. for this project, you will identify various uses of plants in your home. directions make a list of objects, products, and any other items around your house where plants were involved in the production of the item. you should have a list of at least twenty items. then respond to the following questions: note: your list of objects and the answers following should be at least 200 words in length. what if plants no longer existed on earth? how would your life be different?

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

If a checkpoint detects damaged dna, the checkpoint may